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Date: Mon, 10 Mar 2008 02:46:38 +0100 (CET) From: Christian Kujau <lists@...dbynature.de> To: David Chinner <dgc@....com> cc: LKML <linux-kernel@...r.kernel.org>, xfs@....sgi.com, dm-devel@...hat.com Subject: Re: INFO: task mount:11202 blocked for more than 120 seconds On Mon, 10 Mar 2008, David Chinner wrote: > Oh, dm-crypt. Well, I'd definitely start looking there. XFS has a > history of exposing dm-crypt bugs, and these hangs appear to be I/O > congestion/scheduling related and not XFS. Yeah, I noticed that too, thanks for verifying this: during the 2nd bisect run, the box locked up hard when I accessed the device-mapper. I'm using a wrapper script to set up my luks/dm-crypt devices and still have to find out which command exactly triggers the lockup. So, maybe the hard lockup and the hangs are not so unrelated after all...oh well. > Also, we haven't changed > anything related to plug/unplug of block devices in XFS recently, so > that also points to some other change as well... Thanks for your assistance, David, I really appreciate it. I'll try to find out more about this dm-crypt thingy.... Christian. -- BOFH excuse #396: Mail server hit by UniSpammer. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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